This model simulates patterns in high density pedestrian crosswalk traffic. Pedestrians begin at opposite sides of the crosswalk and travel towards each other in high density packs. When the two groups intersect, lines of traffic bands soon emerge on the macro level from a simple set of rules which each pedestrian follows.
For detailed instructions on using the program, take a look at the info window from the Pedestrian Banding model.
Click on one of the pictures to see a quicktime movie of the model: